Untypical tuneable emission activated by NIR radiation observed in gadolinium borate nanomaterials doped with Yb³⁺, Ho³⁺ and Ce³⁺ ions.

ABSTRACT: New luminescent nanoparticles with adjustable emission properties were synthesized via a hydrothermal method to investigate the effect of Ce³⁺ concentration on the tuneable emission properties of Yb³⁺/Ho³⁺ co-doped gadolinium borates. The synthesized samples' comprehensive structural and morphological analysis was conducted utilizing X-ray diffraction and transmission electron microscopy. To obtain highly crystalline nanoparticles GdBO₃:Yb³⁺/Ho³⁺/Ce³⁺ characterized by intense and bright emission, they were annealed at 525 °C and 925 °C. Under the excitation of 972 nm, the tunable yellow to green up-conversion (UC) emission was observed, while the Ce³⁺ concentration increased. This change correlated with

SUBMITTER: Szczeszak A 

PROVIDER: S-EPMC11555286 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature